Wrench.



J. WEDIN.

WRENCH.

APPLIOATION FILED JULY 17. 191s.

Patented J an. 27, 1914.

dmyl.

STATES PATENT QFFICE.

JOI-IN WEDIN, OF MINNEAPOLIS, MINNESOTA.

WRENCH.

i,os5,ies.

T 0 all whom t may concern? Be it known that I, JOHN IVEDIN, a citizen or' the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in lVrenches, or' which the following is a specication.

This invention relates to improvements in wrenches and its object is to provide a wrench in which the jaws thereof may be instantly adjusted to any desired position with relation to each other and then positively locked in such adjusted position.

Another object is to produce a wrench that is simple to operate, durable, eiicient in use and not easy to get out of order.

IVith the foregoing and other objects in view the invention consists in the combination and arrangement of parts to be hereinafter fully described in the following specication, pointed out in the claims and illustrated in the accompanying drawing which forms a part of said specification and in which- Figure 1 is a side elevation of my improved wrench with a portion of the handle and sliding jaw shown in section. Fig. 2 is a rear elevation. Fig. 3 is a sect-ion taken on line 33 of Fig. 2. Fig. Il is a section taken on line 4 4 of Fig. 3. Fig. 5 is a section taken on line 5 5 of Fig. 3.

Like reference characters indicate corresponding parts throughout the several views.

1 is the shank of my improved wrench which is provided with the fixed terminal jaw 2 and the handle 3. The said handle is apertured longitudinally for the reception of a shell Ll which is projected beyond said handle and threaded upon each end; one end being for reception of the nut 5 and the other end to engage the threaded apertured portion of a yoke 6 which is secured to the shank 1 abutting the handle 3. IVithin the shell -l one end of a plunger 7 is disposed which at its opposite end is secured to the movable jaw S and said plunger passes through the knurl 9 and through the casting 10, the latter being secured to the shank 1 as at 11.

The knurl 9 extends into the recessed portion 9a of the shank and is formed with an integral interior annular' member 12 disposed about the plunger 7 and threaded Specification of Letters Patent.

Application led July 17, 1913.

Patented Jan. 27, 191%.

serial No. 779,463.

upon its periphery as at 13 to engage the threaded annular termination 14 of risers 15 partly disposed within said knurl and projected up into the said casting 10 and terminating in jaws 16 disposed about the plunger 7 and curved to conform to the interior configuration of the said casting. The interior surface of the casting is formed with grooves 17 in which lugs 1S on jaws 16 are slidably disposed that bear against the jaws 16. To adjust the wrench the movable jaw is moved along the shank 1 as desired and the knurl 9 is then turned in a direction that will cause the member 12 to raise the risers 15 thus clamping the jaws about the plunger and locking the same againstlongitudinal movement and at the same time locking the movable jaw of the wrench in its adjusted position. Turning the knurl in the opposite direction will release the jaws 16 from engagement with the said plunger.

that is claimed is 1. In a wrench 'comprising a recessed shank carrying a terminal jaw and an aperturcd handle, a movable jaw slidable upon said shank, a shell carried by said apertured handle, a plunger partially disposed within said shell and connected to said movable jaw, a knurl disposed about said plunger and partly projected into the recessed portion of said shank, a threaded annular member formed integral with and disposed within said knurl and encircling said plunger, an interiorly grooved casting secured to said shank above said knurl and encircling said plunger, lugs slidable in the grooved portions of said casting and clamping means for said plunger partly disposed within said knurl and projected into said casting operatively associated with the aforesaid annular threaded member.

2. In a wrench comprising a recessed shank provided with a terminal jaw and an apertured handle, a movable jaw slidable upon said shank, a shell carried by said apertured handle, a plunger partially disposed within said shell and connected to said movable jaw, a knurl disposed about said plunger and partly projected into the recessed portion of said shank, a threaded annular member formed integral with and disposed within said knurl and encircling said plunger, an interiorly grooved cast-ing secured to said shank above said knurl and In testimony that I olaim the foregoing as encircling said plunger, lugs slidable in the my own I have hereto ailixed my signature grooved portions of said casting and risers, in the presence of two subscribingy Witnesses. 10

partially disposed Within said knurl in en- JOHN WEDIN. gagement with said threaded annular mem- Witnesses:

ber, projected into said casting and ternii- HENNING OLSON,

nating in jaws disposed about said plunger. O. A. REINEKE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

